JJ Jonex Muscle Master – Isometric Exercise Equipment for Strength Training

Bull Worker/Strength Power Twister Design: This device likely consists of a long metal bar or rod with handles on each end. The bar may have springs or coils in the middle to provide resistance when twisted or bent.
Multi-Training Bar: The term “multi-training” suggests that this device can be used for a variety of exercises targeting different muscle groups. It may offer versatility in terms of the movements and exercises you can perform with it.
Muscle Master & Muscle King Models: These names could refer to different variations or models of the Fitness Bull Worker/Strength Power Twister, potentially offering varying levels of resistance or additional features.
Versatile Workouts: With its multi-training capabilities, the Fitness Bull Worker/Strength Power Twister can be used for a range of exercises, including bicep curls, chest presses, shoulder presses, tricep extensions, and more. It may also be suitable for rehabilitation exercises or physical therapy.